//
//  AppDelegate.swift
//  LW_Weibo
//
//  Created by 刘伟 on 16/7/9.
//  Copyright © 2016年 LWSpro. All rights reserved.
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var notiProtocol: NSObjectProtocol?
    var window: UIWindow?
    
   


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        
        
        //接收通知 引用循环  因为移除通知需要用到notiProtocol 所以将他定义为属性  属性定义了 要防止引用循环
        notiProtocol = NSNotificationCenter.defaultCenter().addObserverForName(SwitchRootVCNotification, object: nil, queue: nil) { [weak self] (noti) -> Void in
            
            self?.switchRootViewController(noti)
            
            
        }
        
        
        //创建主窗口
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        
        //创建控制器
        let rootVC = LWMainTabBarController()
        
        //设置根控制器
        window?.rootViewController = rootVC
        
        //设置主窗口并显示
        window?.makeKeyAndVisible()
        
        return true
        
    }

    
    //MARK:   - 切换控制器
    @objc private func switchRootViewController(noti: NSNotification) {
        
        //根据传进来的参数,判断是哪个发送的通知
        let object = noti.object  //接收参数
        
        if object is LWOAuthViewController {
            
            
            window?.rootViewController = LWWelcomeViewController()
            
            
        }else { //没有参数 或者是其他参数 那么就是欢迎页发送的通知

            window?.rootViewController = LWMainTabBarController()
            
        }
        
        
        
    }
    
    
    
    //MARK: - 移除通知
    deinit {
        
        NSNotificationCenter.defaultCenter().removeObserver(notiProtocol!)
        
        
    }
    
    
    
    
    
    
    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

